Confirmed animal lover Jeffrey Moussaieff Masson, the author of When Elephants Weep and Dogs Never Lie About Love, notes that no other animal loves us in quite the same way as dogs do. And the feeling is mutual, as Masson finds in his relationship with Benjy, a failed guide dog for the blind who possesses an abundance of uninhibited love. Masson explores the possibility that humans developed the capacity for love, sympathy, empathy, and compassion because of our long association with dogs, surveying recent scientific research to consider the far-reaching consequences of our 40,000-year coevolution.

"Masson is at his most personal and appealing in this book, especially when he writes about Benjy."—Publishers Weekly